XWE data
File type: Various data file
An .xmu file contains data used by XWE, also known as eXtendable WAD Editor, on Microsoft Windows.
File type category:
Various data file
Date updated: October 6, 2026
The .xmu file extension is associated with XWE (eXtendable WAD Editor), a Microsoft Windows application for editing Doom .wad files.
An .xmu file stores data used by XWE. It is an XWE-specific data file rather than a general-purpose interchange format, so its contents may not be meaningful in other applications.
Open an .xmu file with XWE on Microsoft Windows. Because the file contains XWE-specific data, it may need to be opened from within XWE rather than as a standalone document.
Use XWE's own editing or export functions to save relevant project resources in a supported format.
Software applications that handle other tasks involving xmu files:
Microsoft Windows
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